SecurShield HD Composite is a unique composite insulation panel comprised of 1/2" high-density polyiso cover board laminated during the manufacturing process to SecurShield rigid polyiso roof insulation. This is an ideal product for commercial roofing projects that require high thermal efficiency combined with maximum durability in both new construction and retrofit applications. SecurShield HD Composite is produced on-line to achieve a monolithic panel that eliminates the need for cover boards, reduces inter-ply adhesives and saves labor.